ITF Chiba 1990
Marianne Werdel Witmeyer won the title, beating Tamaka Takagi 6–4 4–6 6–2 in the final.
Main draw 29 players
- 1🇺🇸Marianne Werdel WitmeyerFinal · Champion
- 2🇩🇪Eva PfaffQuarterfinals · Lost to Barbara Rittner
- 3🇳🇿Julie RichardsonRound of 16 · Lost to Emiko Sakaguchi
- 4🇦🇷Cristina TessiRound of 16 · Lost to Yukie Koizumi
- 5🇯🇵Tamaka TakagiFinal · Lost to Marianne Werdel Witmeyer
- 6🇦🇺Michelle Jaggard LaiRound of 32 · Lost to Misumi Miyauchi
- 7🇯🇵Kumiko OkamotoRound of 16 · Lost to Hiromi Yoshihara
- 8🇩🇪Barbara RittnerSemifinals · Lost to Tamaka Takagi
- 🇯🇵Hiromi YoshiharaSemifinals · Lost to Marianne Werdel Witmeyer
- 🇯🇵Emiko SakaguchiQuarterfinals · Lost to Tamaka Takagi
- 🇯🇵Mana EndoQuarterfinals · Lost to Marianne Werdel Witmeyer
- 🇯🇵Yukie KoizumiQuarterfinals · Lost to Hiromi Yoshihara
- 🇯🇵Ayako HiroseRound of 16 · Lost to Tamaka Takagi
- 🇯🇵Ei IidaRound of 16 · Lost to Barbara Rittner
- 🇯🇵Misumi MiyauchiRound of 16 · Lost to Mana Endo
- 🇦🇺Nicole PrattRound of 16 · Lost to Marianne Werdel Witmeyer
- 🇯🇵Rika HirakiRound of 16 · Lost to Eva Pfaff
- 🇯🇵Akemi NishiyaRound of 32 · Lost to Eva Pfaff
- 🇭🇰Anne AallonenRound of 32 · Lost to Kumiko Okamoto
- 🇯🇵Hiromi NaganoRound of 32 · Lost to Tamaka Takagi
- 🇦🇺Jane TaylorRound of 32 · Lost to Hiromi Yoshihara
- 🇯🇵Kazuko ItoRound of 32 · Lost to Cristina Tessi
- 🇯🇵Miki MizokuchiRound of 32 · Lost to Mana Endo
- 🇯🇵Nao AkahoriRound of 32 · Lost to Ei Iida
- 🇯🇵Naoko KinoshitaRound of 32 · Lost to Emiko Sakaguchi
- 🇯🇵Shiho OkadaRound of 32 · Lost to Marianne Werdel Witmeyer
- 🇫🇷Valerie BatutRound of 32 · Lost to Julie Richardson
- 🇯🇵Yasuyo KajitaRound of 32 · Lost to Barbara Rittner
- 🇯🇵Yone KamioRound of 32 · Lost to Yukie Koizumi